World Resorts Saint Lucia Castries Weather

Castries 7 Days Forecast

05.07
sun
Day
84°F
W 18 mph
Precip.
18%
Night
79°F
W 17 mph
Precip.
14%
06.07
mon
Day
82°F
W 17 mph
Precip.
48%
Night
79°F
W 18 mph
Precip.
15%
07.07
tue
Day
84°F
W 19 mph
Precip.
14%
Night
79°F
W 19 mph
Precip.
37%
08.07
wed
Day
82°F
W 22 mph
Precip.
14%
Night
81°F
W 21 mph
Precip.
25%
09.07
thu
Day
82°F
W 21 mph
Precip.
14%
Night
81°F
W 19 mph
Precip.
18%
10.07
fri
Day
82°F
W 19 mph
Precip.
13%
Night
81°F
W 19 mph
Precip.
11%
11.07
sat
Day
82°F
W 20 mph
Precip.
10%
Night
81°F
W 19 mph
Precip.
7%

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 82.9°F. The highest and lowest sea temperatures during the month were 84.0°F and 82.2°F.

Air temperature in Castries, °F

Precipitation total in Castries, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Castries

Sunniest months:
December 4 days
March 4 days
September 4 days
Warmest months:
September 86.8 °F
October 86.0 °F
August 85.8 °F
Warmest sea temp:
September 84.8 °F
October 84.6 °F
August 84.0 °F
Coldest months:
January 81.8 °F
February 81.9 °F
March 82.1 °F
Rainiest months:
August 7 days
October 5 days
September 5 days
Windiest months:
June 15.8 mph
February 15.4 mph
January 15.0 mph

Castries on a weather map

Current weather
02:47
Castries
+79°F
W 17 mph
Feels like: +84°F
Precip.: 14%
Places in Saint Lucia:
Name
°F
Vieux Fort
+81°F
Castries
+79°F
24 Hours Forecast
Castries
Local time: 02:47
July 05, sunday
0300
79°F
W
17 mph
0600
79°F
W
19 mph
0900
82°F
W
18 mph
1200
84°F
W
18 mph
1500
82°F
W
17 mph
1800
81°F
W
17 mph
2100
81°F
W
17 mph
July 06, monday
0000
79°F
W
17 mph
Units of measurement: °C / °F